Nikoloz Basilashvili (Georgian: ნიკოლოზ ბასილაშვილი, translit.:nik'oloz basilashvili, pronounced [nikʼɔlɔz bɑsilɑʃvili];[2] born 23 February 1992) is a Georgian professional tennis player. In July 2018, he made it into the main draw of the German Open in Hamburg as a qualifier and went on to win the tournament, defeating Leonardo Mayer in the final and becoming the first Georgian player ever to win an ATP tournament. With winning his first title, Basilashvili moved to No. 35 in the world standings, his highest ever ranking.

Nikoloz did not play in any Grand Slams during his junior career. He reached a career high combined (singles and doubles) of World No. 59 on January 5, 2009. He ended his junior career with a 35–22 record on singles and 14–17 on doubles.[3]

Basilashvili played in his first ITF Junior Circuit tournament in later 2006 at the G2 Jerry Simmons Tournament. He lost in the first qualifying round.[4]
In 2007, he managed to break through the qualifying of two G4 tournaments in Israel and a G3 in Romania. Nikoloz lost in the Round of 16 in all of them. Later that year, he reached his first semifinal at any junior tournament doing that in doubles for the first time at the US Junior Hard Court Championships, partnering Patrick Daciek. In singles, he reached that round at the G4 USTA Illinois losing to Filip Krajinovic, in September.[5][6]

In 2008, Nikoloz won his only junior title, the G4 Tennis Express tournament, defeating Raymond Sarmiento in three sets. The Georgian played mostly at G1 and GA tournaments that year, breaking through the qualifiers of the Eddie Herr Tennis Championship and the Orange Bowl. He reached the round of 16 in the first and the quarterfinals in the later. The Orange Bowl was his last Junior tournament.[7]

In 2015, he qualified for his first Grand Slam Tournament – Roland Garros, losing in the first round to Thanasi Kokkinakis. Later in the same year he managed to qualify for Wimbledon, where he beat Facundo Bagnis and the 15th seed Feliciano López, advancing to the third round of a major for the first time in his career. Later that year he managed to qualify for US Open too, where he lost to Feliciano López in the first round in straight sets.

In July 2018, he made it into the main draw of the German Open in Hamburg as a qualifier and went on to win the tournament, defeating Leonardo Mayer 6–4, 0–6, 7–5 in the final and becoming the first Georgian player ever to win an ATP tournament. With winning his first title, Basilashvili moved to no. 35 in the world standings, his highest ever ranking, and also the highest ever by a player from Georgia.